Extract Even Bits Only from 32-bit Register

Code

#include <stdio.h>
#include <stdint.h>

uint32_t extract_even_bits(uint32_t reg) {
    // Your code here
    uint32_t extracted_bits = 0;
    for (int i = 0; i < 16; i++) {
        extracted_bits |= ((reg >> 2 * i) & 1U) << i;
    }

    return extracted_bits;
}

int main() {
    uint32_t reg;
    scanf("%u", &reg);
    printf("%u", extract_even_bits(reg));
    return 0;
}

Solving Approach